package com.annhoa.application.config;

import com.annhoa.infrastructure.security.handle.AuthenticationEntryPointImpl;
import com.annhoa.infrastructure.security.handle.LogoutSuccessHandlerImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

import com.annhoa.infrastructure.filter.JwtAuthenticationTokenFilter;
import com.annhoa.domain.service.CustomUserService;

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

	@Bean
	protected UserDetailsService customUserService() {
		return new CustomUserService();
	}


	/**
	 * 认证失败处理类
	 */
	@Autowired
	private AuthenticationEntryPointImpl unauthorizedHandler;

	/**
	 * 退出处理类
	 */
	@Autowired
	private LogoutSuccessHandlerImpl logoutSuccessHandler;


	@Autowired
	public void configureAuthentication(AuthenticationManagerBuilder authenticationManagerBuilder) throws Exception {
		authenticationManagerBuilder
				// 设置UserDetailsService
				.userDetailsService(customUserService())
				// 使用BCrypt进行密码的hash
				.passwordEncoder(passwordEncoder());
	}

	// 装载BCrypt密码编码器
	@Bean
	public PasswordEncoder passwordEncoder() {
		return new BCryptPasswordEncoder();
	}

	@Bean
	public JwtAuthenticationTokenFilter authenticationTokenFilterBean() throws Exception {
		return new JwtAuthenticationTokenFilter();
	}

	@Override
	protected void configure(AuthenticationManagerBuilder auth) throws Exception {
		auth.userDetailsService(customUserService());
	}

	@Bean
	@Override
	public AuthenticationManager authenticationManagerBean() throws Exception {
		return super.authenticationManagerBean();
	}

	@Override
	protected void configure(HttpSecurity http) throws Exception {

		http	// 由于使用的是JWT，我们这里不需要csrf
			.csrf().disable()
			// 基于token，所以不需要session
				// 认证失败处理类
			.exceptionHandling().authenticationEntryPoint(unauthorizedHandler).and()

			.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and().authorizeRequests()
			// .antMatchers(HttpMethod.OPTIONS, "/**").permitAll()
			// 允许对于网站静态资源的无授权访问
			.antMatchers(HttpMethod.GET, "/login", "/static/**",
                "/", "/*.html", "/favicon.ico", "/**/*.html",
                "/**/*.css", "/**/*.js").permitAll()
			// 允许 swagger
			.antMatchers("/swagger-resources/**","/v2/**").permitAll()
            // 对于获取token的rest api要允许匿名访问
			.antMatchers("/auth/**","/annhoa-blog/**","/open-api/**").permitAll()
			// 除上面外的所有请求全部需要鉴权认证
			.anyRequest().authenticated();
		// 添加JWT filter
		http.addFilterBefore(authenticationTokenFilterBean(), UsernamePasswordAuthenticationFilter.class);
		// 禁用缓存
		http.headers().cacheControl();
		 // session管理
		 http.sessionManagement().sessionFixation().changeSessionId()
		 .maximumSessions(1).expiredUrl("/");
		http.logout().logoutUrl("/logout").logoutSuccessHandler(logoutSuccessHandler);


	}


}